Wireless In The Home CONTAINING Explanation of the Theory of Radio; The Value of Radio in the Home; The Essentials of a Radio Receiving Station; How to Erect an Antennae; The Purposes and Uses of Various Pieces of Equipment; The Two-Step Amplifier PUBLISHED BY DeForest Radio Telephone and Telegraph Company Digitized by Google. Topics: Radio, Telegraph, Wireless
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb. Topics: Radio, Telegraph, Wireless Source: http://books.google.com/books?id=xKtIAAAAMAAJ&oe=UTF-8
CONTENTS. CHAPTER I. How the waves are made. How the waves are received. Antennae, or aerials to catch the waves. How the coherer is made. Making the decoherer. What the relay is for. The receiving circuits connected up. The relay adjustment. Making the relay and sounder. Drilling holes in brass CHAPTER II. Marconi's coherer. The coherer mixture of metals. The spark coil or transmitter. A one and one half inch spark. The iron wire core. A standard six inch spark coil. To get a six inch spark.... Topics: Radio, Telegraph, Wireless, Ham Radio, Amateur Radio
CONTENTS I The Transmitting Circuit 1 II Transmitting Stations: Experimental or Low-Power Apparatus 10 III Transmitting Apparatus: Professional or High-Power Stations 17 IV The Receiving Circuit 32 V Receiving Apparatus 40 VI Aerials and Grounds: Types and Construction 68 VII Protection and Installation of a Station 80 VIII Operation of a Station 90 IX Breaking-in Systems: Methods of Simultaneous Receiving and Transmitting 107 X Codes 121 XI The Etiquette of Wireless and the Subject of... Topics: amateur radio, ham radio, Telegraph, Wireless
Recordings of 78-RPM Morse Code training records, prepared by the U.S. "Special Service Division, S.O.S., War Department". Manufactured by Allied Record Mfg Co., Hollywood, Calif. (See images of record labels.) There is no date on the recordings but judging by the content ("CORREGIDOR... Get the message through!...") the estimated year of manufacture is probably 1942 or 1943. The recorded material consists of a code aptitude test, introduction to Morse Code letters and... favoritefavoritefavoritefavorite ( 6 reviews ) Topics: AF2Z, Morse Code, code, radio, telegraph, radio telegraph, code practice, 78-RPM, phonograph... Source: 78-RPM phonograph records.